Sound Wave Interference Two speakers, mounted on the table and facing each other, are driven by a function generator. A microphone is introduced between the speakers and the sound waves are displayed on an oscilloscope. This demonstrates the effect of interference and the resulting phase shift on sound waves over a fixed distance. Three different frequencies are demonstrated; 880Hz (A5), 440Hz (A4) and 523.3Hz (C4).Author(s): No creator set

Airbnb chief says Asia growth strong; no IPO for 2012 Oct. 25 - Silicon Valley start-up Airbnb, which connects travelers with alternative accommodation, says its growth in Asia is almost double the rate elsewhere, adding it has no plans to go public in 2012.Author(s): No creator set

SDSU Geological Sciences Webinar - Michael Verrier An overview of the KKN program at Universitas Gadjah Mada from an
international perspective and the opportunity for further undergraduate
exchange from San Diego State University
Michael Verrier
Department of Geological Sciences
San Diego State University
Summary
This seminar will be about my experience as an international exchange student from the Geological Sciences Department at San Diego State University (SDSU) participating in the community hazard mitigation field camp at UniversiAuthor(s): No creator set

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ZZ Top's Dusty Hill Talks to Expedition 29 Dusty Hill of the rock band ZZ Top visits the Mission Control Center in Houston to talk with the International Space Station's Expedition 29 crew.Author(s): No creator set

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Kanu O Ka Aina Learning Ohana Kanu o ka 'Aina teaches the young and old about the sustainable traditions of the Hawaiian people while instilling a sense of pride and responsibility. See how heritage and modern life are blended into a rich, community-driven education system. (1:59)Author(s): No creator set

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Hysterectomy (Spanish) This patient education program reviews female reproductive anatomy, symptoms, and treatments, including the benefits and risks of a hysterectomy, the surgical removal of the uterus, for treating certain gynecological diseases. This is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.Author(s): No creator set

Sunday Service - 10/23/2011 - Sam Wells A service of worship in Duke University Chapel. The Reverend Dr. Samuel Wells delivers a sermon entitled "I May Not Get There With You."
Opening excerpt from the sermon:(36:23)
"Last Sunday I talked about taxes. So this Sunday I thought I'd talk about death. The death of Steve Jobs, the man who gave the apple the most attention it's received since the Garden of Eden, and the inventor of sleek devices modeled around the letter "i," brought renewed attention to a famous commencement address he mAuthor(s): No creator set

Adult Monarch butterfly The Monarch butterfly is an insect and has six legs and two sets of wings. The butterfly drinks using a straw-like mouth structure.Author(s): No creator set

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Leaf Area Index for Africa September, 2000, through May, 2001 MODIS observations also allow scientists to track two vital signs of Earths vegetation. At Boston University, a team of researchers is using MODIS data to create global estimates of the green leaf area of Earths vegetation and how much sunlight the leaves are absorbing. Called LAI, for Leaf Area Index, and FPAR, for Fraction of absorbed Photosynthetically Active Radiation, both pieces of information are necessary for understanding how sunlight interacts with the Earths vegetated surfaces-from thAuthor(s): No creator set

How to Make a Stuffed Crust Pizza This selection contains a video which shows a stuffed crust pizza being made step-by-step. Ingredients needed and directions appear in print. ( 1:35)Author(s): No creator set